Rainbow Dash and Twilight Sparkle are true, fire-forged friends. The strength of their bond has been tested by villains, adventures, and the little frictions of day-to-life.
There is, however, one bitter point of contention between them - an argument that is never put to rest no matter how many times it is rehashed.
Twilight thinks it is really, completely weird that Rainbow writes steamy self-insert fanfictions between herself and her personal idol Daring Do.
Rainbow thinks it is really, completely normal and Twilight is just being a prude (and needs to stop bugging her about egghead things like commas and verb tenses).
[Sex tag for discussion about erotic literature - nothing graphic or descriptive]